ul{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
} 

li{
    list-style-type:none;
}
a{
    text-decoration: none;
    color: black;
}
h1,h2,h3,h4,h5{
    font-weight: normal;
}

.inner{
    width: 400px;
    border: 1px solid red;
    
}